Bung-bush wrench



1 M I? umm .HJJHWMK J A. G. ANDERSON.

BUNG BUSH WRENCH.

(No Model.)

kA/kovumf Bar/4A UNITED STATES PATENT OFFICE.

ANTON G. ANDERSON, OF CHICAGO, ILLINOIS.

BUNG-BUSH WRENCH.

SPECIFICATION forming part of Letters Patent No. 349,556, dated September 21, 1886.

Application filed December 1'1, [885. Serial No. 185,991. (No model.) i

To aZZ whom it may concern:

Be it known that I, ANTON G. ANDERSON, a citizen of the United States,residing at Ohicago, Illinois, have invented certain new and useful Improvements in Bun g-Bush \Vrenehes, of which the following is a specification.

The object of my invention is to make a wrench i'or screwing bung-bushes into casks and kegs readily and easily; and my invention consists in the features and details of construction hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation of my improved wrench. Fig. 2 is a vertical sectional view of the same, taken through the handle. Fig. 3 is a plan view of a section of the wrench, taken through the line :10 0c of Fig. 2. Fig. 4. is a plan view of a section of the same, taken through the line 1) o of Fig. 2. Fig. 5 is a plan view, on a larger scale, showing a section of the central stem and the cams or eccentrics hereinafter described. Fig. 6 is a perspective view of one of the dogs or clasps hereinafter described; and Fig. 7 is a top or plan view of the bush.

In the drawings, A represents the case or shell of the wrench; B, the handles for turning the wrench; O, the handle for turning the central or eccentric shaft of the wrench; D, such central or eccentricshaft; E, cams or eccentrics on the lower end of such shaft; F, dogs or clasps;

G, the bung-bush to be inserted; H, a groove in the eccentric shaft; I, a screw; J, projections or shoulders; K, other projections or shoulders; L, still other projections or shoulders, all

on the dogs or clasps F, and M spiral inclines on the camsor eccentrics E.

In making my improved wrench, I make a hollow case or shell for the body of the wrench, and in or to which the-other parts are to be arranged or attached. I provide sockets in which handles may be placed, as shown in Figs. 1 and 2, for turning the wrench and screwing it into place in kegs or casks. These sockets may be cast integral with the shell of the wrench, or the handles for turning the wrench may be attached in any suitable manner. Through the vertical center of the shell I place a central or eccentric shaft, D. This shaft may be provided with a groove, H, in which the end of a screw, I, passing through the shell, may rest to prevent the shaft from being removed, except as desired. To the upper end of this eccentric shaft I attach the handle G,'to enable it to be turned wholly or partially around in one direction or the other. The lower end of this shaft is provided with cams or eccentrics E, as shown in Fig. 2 and other figures. These eccentrics revolve with theshaft D. They are arranged with aspiral inclination, as shown in Figs. 2 and-5 of the drawings, so that as they are turned in one direction or the other they will raise or lower the dogs or clasps F. These clasps are arranged at the lower end of the wrench and extend-up into the case, so as to prevent their displacement, as well as to afford them the necessary strength. They are provided with projections or shoulders J, which extend under the lower ends of the eccentrics, and also with the shoulders K, at a point far enough up to extend over the upper ends of the eccentrics in like manner. They are also provided with shoulders or projections L, extending outwardly and about opposite to the shoulders J. As the shoulders J and K rest against the upper and lower edges of the eccentrics, which, as before said, are spirally inclined, the dogs or clasps F are raised or lowered as the eccentrics are turned in one direction or the other, The

turning of the eccentrics in the direction which raises the dogs F up also presses them out, while turning the eccentrics in the opposite direction loosens them and permits them to move inward. The lower end of the case or shell A is made to receive the upper end of the bungbush, as shown in Figs. 1 and 2. The bung-bush should be made with a number of sides, and the bottom of the shell", in which it is placed, should be made of a corresponding form, to receive the bush and prevent its turning. One form of such bush is shown in Fig. 7. When the bush is in place and the eccentrics are turned by means of the handle on the central oreccentric shaft, so that the eccentrics will carry the dogs or clasps outward, such 5 clasps will be carried out until the shoulders L are beyond the lower edge of the bung-bush, when the eccentrics, which at that point are made to exert a sidewise pressure on the dogs, will push the shoulders out beyond the edge [00 of the bung-bush and clasp and hold the same firmly in place, as shown in Fig. 2. It, now, the bun g-bush be inserted in the bung-hole of a cask or keg of slightlyless diameter than the bung-bush, and the wrench be turned by means of the handles B, the bush will be screwed into the keg or cask. To remove the wrench, all that is necessary is to turn the handle 0 in the opposite direction from that used in raising and expanding the dogs or clasps, by which operation they will be loosened, so that the shoulders L will notimpinge against the edges of the bung-bush, when the wrench may, of course, be lifted out of the bush and applied to another one, when the operation may be repeated.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a bung-bush wrench, the combination of a shell or case, a central shaft therein, provided with cams or eccentrics at its lower end, and dogs or clasps which may both be expanded and raised by turning the shaft, substantially as described.

2. In a bung-bush wrench, the combination of a shell or case, a central shaft therein provided with cams or eccentrics with spiral inclines at its lower end, and dogs or clasps which may both be expanded and raised by turning the eccentrics, substantially as described.

3. In a bung-bush wrench, a central shaft provided with cams or eccentrics, a dog or clasp provided with shoulders or projections J and K, to bear against the upper and lower edges of the eccentrics, respectively, and the shoulder or projection L, to clasp and hold the bung-bush in place, substantially as described.

A, e. ANDERSON.

Vitnesses:

THOMAS A. BANKING, M. B. BANNING. 

